Get matched with top masons in Frederick, MD

Recommended by 92% of Angi customers

39 years of experience

We strive to exceed your expectations in waterproofing, mold remediation and foundation repair. We take pride in our work, that’s why we don’t employ subcontractors. We understand there are a lot of choices out there when choosing a certified installer – we hope you choose us! Protect your home and health from mold and mildew invaders. In our 28 years of experience, we have never encountered a wet basement, crawlspace encapsulation or mold removal condition that we couldn’t handle. Give us a call today for a free, no obligation inspection and professional basement waterproofing system tailored for your home or commercial project. AA Action Waterproofing is licensed, insured and bonded with a A+ Rating with the BBB. Please call us and we’ll happily supply you with references.

"They did a great job. We got 4 quotes; they were neither the cheapest nor the most expensive. Everything was done on schedule, and they did not try to talk us into work we didn't need. Very professional, and they did a good clean-up job. We were initially annoyed that they had not cleanly cut through our tile (which we did not think to request), but we would have ended up pulling up and replacing the cut pieces anyway, so it really doesn't matter. Water problems in our basement have stopped! We are very satisfied."

Michelle R on March 2021

"They did a great job. We got 4 quotes; they were neither the cheapest nor the most expensive. Everything was done on schedule, and they did not try to talk us into work we didn't need. Very professional, and they did a good clean-up job. We were initially annoyed that they had not cleanly cut through our tile (which we did not think to request), but we would have ended up pulling up and replacing the cut pieces anyway, so it really doesn't matter. Water problems in our basement have stopped! We are very satisfied."

Michelle R on March 2021

Basement Gurus, LLC

Basement Gurus, LLC

Customers say: Quality work

16 years of experience

Free onsite estimate

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"Josh, the representative from Basement Gurus was outstanding! We had experienced a water issue in our finished basement. Josh thoroughly examined the interior and exterior of the home and determined that the leak might be plumbing related. Josh could have very easily exploited our ignorance and suggested a solution purely beneficial to his company that may not have addressed the underlying cause of the problem. Instead, he demonstrated his integrity by realistically assessing the situation even if it would jeopardize the sale. This is commendable particularly in this era where cutthroat business practices are commonplace. I highly recommend Basement Gurus. They are fortunate to have an employee like Josh who exhibits concern for the customer at such a high level. "

Don I on January 2026

"Josh, the representative from Basement Gurus was outstanding! We had experienced a water issue in our finished basement. Josh thoroughly examined the interior and exterior of the home and determined that the leak might be plumbing related. Josh could have very easily exploited our ignorance and suggested a solution purely beneficial to his company that may not have addressed the underlying cause of the problem. Instead, he demonstrated his integrity by realistically assessing the situation even if it would jeopardize the sale. This is commendable particularly in this era where cutthroat business practices are commonplace. I highly recommend Basement Gurus. They are fortunate to have an employee like Josh who exhibits concern for the customer at such a high level. "

Don I on January 2026

PVI Group, LLC

PVI Group, LLC

Recommended by 94% of Angi customers

4 years of experience

PVI Group is your one-call solution for a wide range of home improvement, maintenance and repair and lawn care needs. Our licensed professionals are known for the quality of our workmanship and professional reliability so you know the job will be done correctly and efficiently.

"Cory @ PVI was very professional, and responsive to job needs. Assisted with permitting which was a time saver. His team really did a top notch job, and gave me a very reasonable pricing, I'll be using PVI group again, for other home projects . "

Jon M on January 2026

"Cory @ PVI was very professional, and responsive to job needs. Assisted with permitting which was a time saver. His team really did a top notch job, and gave me a very reasonable pricing, I'll be using PVI group again, for other home projects . "

Jon M on January 2026

Horizon Landscaping Designs LLC

Horizon Landscaping Designs LLC

Customers say: Super punctual

Recommended by 96% of Angi customers

10 years of experience

Outdoor Designs it Includes: MASONRY AND HARDSCAPE Drainage Solutions, Patios, retaining walls, walkways, fireplaces, firepit, fences, driveways, columns, ponds, mulch, etc. We have general liability insurance License Maryland ( MHIC No. 133815 ) License Virginia Class A VA 2705189468 Free Estimate and Designs

"Recently, I completed a comprehensive home and yard renovation project with Horizon Landscaping Designs, owned by Lazaro Bernal. I am highly satisfied with the exceptional quality and meticulous management of the work provided. The scope of the project encompassed retaining wall construction, lawn restoration, exterior and interior stone and stucco repairs, screen porch renovation, extensive carpentry projects, painting, and drywall repairs throughout the house. Lazaro Bernal was present on-site supervising or collaborating with his employees on a daily basis. His communication with me regarding the schedule and cost of each task was impeccable. The projects were completed on time and within the agreed-upon financial boundaries. If you require any home or yard repairs or renovations, I highly recommend Horizon Landscaping Designs and its owner, Lazaro Bernal. He demonstrates a genuine commitment to the quality of his work and exceeding the expectations of his clients."

Rachel S on January 2026

"Recently, I completed a comprehensive home and yard renovation project with Horizon Landscaping Designs, owned by Lazaro Bernal. I am highly satisfied with the exceptional quality and meticulous management of the work provided. The scope of the project encompassed retaining wall construction, lawn restoration, exterior and interior stone and stucco repairs, screen porch renovation, extensive carpentry projects, painting, and drywall repairs throughout the house. Lazaro Bernal was present on-site supervising or collaborating with his employees on a daily basis. His communication with me regarding the schedule and cost of each task was impeccable. The projects were completed on time and within the agreed-upon financial boundaries. If you require any home or yard repairs or renovations, I highly recommend Horizon Landscaping Designs and its owner, Lazaro Bernal. He demonstrates a genuine commitment to the quality of his work and exceeding the expectations of his clients."

Rachel S on January 2026

Once & Done Waterproofing Solutions, LLC

4.92(

Once & Done Waterproofing Solutions, LLC

4.92(

Recommended by 100% of Angi customers

8 years of experience

At Once & Done Waterproofing Solutions, LLC, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! With our new location in Martinsburg, WV we service Berkeley, Jefferson, and Morgan counties and our new location in Mercersburg, PA, we are happy to serve Franklin, Fulton, Adams, and Cumberland counties.

"Once & Done did a great job!"

Hugh L on August 2024

"Once & Done did a great job!"

Hugh L on August 2024

Valle concrete contractors & more LLC

4.86(

Valle concrete contractors & more LLC

3 years of experience

Free onsite estimate

Valle Concrete Contractors & More LLC in Winchester, VA, specializes in comprehensive concrete solutions. From installation and repair to resurfacing, our services extend to masonry, foundations, residential and commercial projects, landscaping, drywall, painting, tree removal, snow removal, post-construction cleaning, and remodeling. Count on us for excellence in every detail. Quality Concrete Contractor,Reliable Concrete Contractor Front Royal, VA; Purcellville, VA; Strasburg, VA; Berryville, VA; Shenandoah Farms, VA Concrete Contractor,Concrete Company,Concrete Construction,Concrete Specialist,Concrete Services,Concrete Driveway,Concrete Finishing,Concrete Installation,Concrete Masonry,Concrete Paving,Drywall Installation,Drywall Repair

"Outstanding work. Prompt and reasonably priced. Recommend highly!"

Jim H on November 2025

"Outstanding work. Prompt and reasonably priced. Recommend highly!"

Jim H on November 2025

JES Foundation Repair

JES Foundation Repair

33 years of experience

Free onsite estimate

JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.

"JES left my home in worse shape and will not return my calls to come repair the damage left. I reached out to them to install a joist support system under my kitchen so that I can renovate this year. There were floor joists under the back door that had been cut during a renovation about 30 years ago. JES installed a jack system but then left my foundation under the door where you can literally see daylight from the basement. I brought this up to the crew before they left late Friday night (they worked long hours just to ?finish? without even asking me if it was okay to trap me at home that late), and the lead just shrugged at me. Shortly after they left, it rained, and sure enough, water poured into my electrical room and all over the freshly poured concrete. I called Friday night, sent an email and text with videos, and called today 3 times. Each time the ?production manager? is ?busy.? Before this, they were perfectly capable of blowing up my phone to see if I could schedule sooner."

Brittany A on June 2025

"JES left my home in worse shape and will not return my calls to come repair the damage left. I reached out to them to install a joist support system under my kitchen so that I can renovate this year. There were floor joists under the back door that had been cut during a renovation about 30 years ago. JES installed a jack system but then left my foundation under the door where you can literally see daylight from the basement. I brought this up to the crew before they left late Friday night (they worked long hours just to ?finish? without even asking me if it was okay to trap me at home that late), and the lead just shrugged at me. Shortly after they left, it rained, and sure enough, water poured into my electrical room and all over the freshly poured concrete. I called Friday night, sent an email and text with videos, and called today 3 times. Each time the ?production manager? is ?busy.? Before this, they were perfectly capable of blowing up my phone to see if I could schedule sooner."

Brittany A on June 2025

Yard By Yard Makeovers LLC

4.94(

Yard By Yard Makeovers LLC

4.94(

Recommended by 95% of Angi customers

28 years of experience

Brian David Mahan, Master Gardener, and his expert crew have been helping homeowners in Silver Spring and Takoma Park, Maryland since 1993. We can reshape and beautify neglected yards, or any yards. Our creative expertise can provide you with a basic plan compatible with your needs and budget

"Excellent workers that cleared a thick growth of bamboo from yard."

Amaris J on February 2023

"Excellent workers that cleared a thick growth of bamboo from yard."

Amaris J on February 2023

S&S Waterproofing And Foundation Repair

S&S Waterproofing And Foundation Repair

Recommended by 100% of Angi customers

16 years of experience

At S&S Waterproofing we have over 25+ years of combined experience in Waterproofing and foundation repair. We never use sub-contractors and aren't a franchise owned company that uses high pressure sales tactics. We are a certified foundation repair specialist and install hydraulic push piers and helical piers. We offer a lifetime transferable warranty and free inspections.

"Steve was great to work with - knowledgeable, flexible with scheduling, and always available to answer questions. His crew was courteous and efficient. We are very happy with the results. Highly recommend!"

Nadine T on January 2024

"Steve was great to work with - knowledgeable, flexible with scheduling, and always available to answer questions. His crew was courteous and efficient. We are very happy with the results. Highly recommend!"

Nadine T on January 2024

Best Buy Waterproofing

Best Buy Waterproofing